Specifications

Specifications

1) Sound Processor & Major Components

• C-Media CMI8788 Oxygen HD PCI Audio Processor
• PCI 2.2 Interface with Bus Mastering and Burst Modes
• 4 synchronous I2S output pairs
• 4 synchronous I2S input pairs
• Multi-channel AC-link can support 2 AC97 codecs
• All I2S I/O pairs support 32-bit high-definition PCM data transfer and adjustable sample rate up to 192KHz
• Integrated up to 192kHz/24-bit S/PDIF transmitter for 44.1kHz,48kHz, 96kHz, 192kHz SPDIF output
• Integrated up to 192kHz/24-bit S/PDIF receiver for 44.1kHz,48kHz, 96kHz, 192kHz SPDIF input
• S/PDIF IN supports digital loop back path for transforming between optical and RCA connection
• MPU-401 MIDI UART port support
• External EEPROM Interface for Sub-Vendor/Sub-Device ID using custom driver
• 4pcs Digital to Analog Converters: AKM AK4396 120dB 192 kHz 24-Bit Advanced Multi-Bit Stereo Delta Sigma DAC. Max Audio Resolution Playback & Quality is 24-bit/192kHz in Stereo and 24-bit/192kHz in 7.1.
• 1pc Analog to Digital Converter: AKM AK5385 114dB 192 kHz 24-Bit Delta Sigma ADC. Max Recording Sampling Rate is 24-bit/192 kHz in Stereo.
• 1 pc CMI9780 AC'97 2.3 CODEC for AUX input, CD input, MIC input (16 bit/48kHz playback/recording).

2) System Interface

• Supports onboard high grade COAX(RCA) + OPTIC(with 3.5mm miniplug-TOSLINK adapter) Combo S/PDIF transmitter module (Up to 24-bit/192khz support)
• Supports onboard high grade COAX(RCA) + OPTIC(with 3.5mm miniplug-TOSLINK adapter) Combo S/PDIF receiver module (S/PDIF-IN #1, Up to 24-bit/192khz support)
• Upgrade Extension I/O header for Optional Extension Board S/PDIF Input (S/PDIF-IN #2) - Optional Extension Board will be sold separately.
• Pre-out circuit for DAC output using swappable 4pcs high performance dual audio operational amplifiers (OPAMP, DIP type). Swappable design for DIY, final sound quality and color managed by OPAMP change.
• Pre-input circuit for ADC input using 2pcs high performance dual audio operational amplifiers (OPAMP, SMD type)
• Pre-input circuit for MIC input using 1pc high performance dual audio operational amplifiers (OPAMP, SMD type).
• Max output level is 5Vrms (Differential DAC output with gain adjustment / approximately full swing from +/- 8V dual power supply).
• Stable Power Supply: 1A 3.3V / 1A 5V / 1A 8V / 1A -8V Voltage Regulator.
• Proper OPAMP control circuit (large capacity 1A +8V, -8V, dual power supply circuit) for high quality audio quality, prevent audio distortion at high volume level.
• Anti-Pop control Circuit using high performance audio muting transistor.
• Front Panel Audio(10-1 pin) connector supports connectivity for stereo audio(headphone) output and a microphone input from most new chassis-mounted front panel audio I/O module.
• All 7.1 channel analog output muted by jack connection sense of front panel headphone output
• Dual MIC input available by back panel mic input and front panel mic input